Question 1

Devise a synthesis to lengthen the legs of "Ralph" as requested below.

Accepted Answer

The answer of Devise a synthesis to lengthen the legs...

Question 2

Devise a synthetic route to prepare 1,7-heptanediol from propene.

Accepted Answer

The answer of Devise a synthetic route to prepare 1,7-heptanediol...

Question 3

Select the best reagents for the reaction below. 2/h \upsilon  C)  Br2, CCl4 D)  HBr/ROOR E)  h \upsilon  /NBS " class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)   HBr
B)   Br2/h υ\upsilonυ 
C)   Br2, CCl4
D)   HBr/ROOR
E)   h υ\upsilonυ  /NBS

Question 4

Propose a multi-step synthetic sequence to accomplish the transformation below.

Accepted Answer

1. Br₂, h...

Question 5

One compound is produced when acetylene is treated with the following reagents. What is the product?

Accepted Answer

butanoic a...

Question 6

Propose a synthetic route for the following reaction.

Accepted Answer

1. NaCCH
2...

Question 7

Devise a synthetic route for the following equation.

Accepted Answer

The answer of Devise a synthetic route for the following...

Question 8

Which order of reactions would most effectively convert trans-2-butene into 1-butene?

Accepted Answer

A)   convert to the gem-dibromoalkane, then to the terminal alkyne, then to the terminal alkene
B)   convert to an alcohol, then to a terminal alkyne, finally to the terminal alkene
C)   convert to the terminal alkene in one step
D)   shorten the chain by two carbons, then add a two-carbon alkene to the end
E)   convert to an alkane, then to a terminal alkyne, and finally to a terminal alkene

Question 9

Select the best reagents for the reaction below. 2/h \upsilon  C)  Br2/ROOR D)  HBr/ROOR E)  h \upsilon  /NBS " class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)   HBr
B)   Br2/h υ\upsilonυ 
C)   Br2/ROOR
D)   HBr/ROOR
E)   h υ\upsilonυ  /NBS

Question 10

Identify the statement that is not part of Green Chemistry.

Accepted Answer

A)   Maximize atom economy.
B)   Use safer solvents.
C)   Prevent waste.
D)   Run all reactions faster with high heat.
E)   Use less hazardous reagents.

Question 11

Using retrosynthetic synthesis, determine which compound(s)  could lead to the alkyne shown below in a single step.

Accepted Answer

A)   I
B)   II
C)   III
D)   IV
E)   I or II

Question 12

What is the minimum number of steps required to convert 2-methylpropane into 2-methylpropene?

Accepted Answer

A)   1
B)   2
C)   3
D)   4
E)   5

Question 13

Using retrosynthetic synthesis, determine which compound(s)  could lead to the bromoalkene shown below in a single step.

Accepted Answer

A)   I or III
B)   I or IV
C)   I
D)   II
E)   III

Question 14

Identify the changes that must occur in converting cis-2-butene into 2-butanol.

Accepted Answer

A)   only the identity of the functional group(s)  must change
B)   only the carbon skeleton must change
C)   only the location of the functional group(s)  must change
D)   only the identity and location of the functional group(s)  must change
E)   both the carbon skeleton and the identity of the functional group(s)  must change

Question 15

Predict a correct sequence of reactants required to complete the following synthesis in which propanal is the only carbon-containing product. 2 CH3SCH3 H2O CH3CH2Br O3 Na/NH3(l)  H2/Pt I II III IV V VI VII A)  1. I; 2. III; 3. IV; 4. V; 5. II B)  1. VI; 2. IV; 3. IV; 4. VII; 5. V; 6. II C)  1. V; 2. II D)  1. I; 2. IV; 3. VI; 4. V; 5. II E)  none of the above are correct" class="answers-bank-image d-inline" rel="preload" > NaNH2 CH3SCH3 H2O CH3CH2Br O3 Na/NH3(l)  H2/Pt I II III IV V VI VII

Accepted Answer

A)   1. I; 2. III; 3. IV; 4. V; 5. II
B)   1. VI; 2. IV; 3. IV; 4. VII; 5. V; 6. II
C)   1. V; 2. II
D)   1. I; 2. IV; 3. VI; 4. V; 5. II
E)   none of the above are correct

Question 16

Devise a synthetic route of the diol shown below starting with 1,1,3,3-tetramethyl-2-ethylcyclohexane.

Accepted Answer

<img  loading="lazy" src="/assets/images/blured-textbook.svg" class="d-inline m-1" alt="blured image" width="139" height="30">_TB4454_00 Alternati...

Question 17

Perform a retrosynthetic analysis by working backwards two steps in the synthesis below. Identify possible combinations of A and B that can lead to the alcohol (C) .

Accepted Answer

A)   B = I and A = VI
B)   B = VI and A = I
C)   B = III and A = VII
D)   B = VII and A = II
E)   B = VIII and A = V

Question 18

Select the best reagent to convert 4,5-dimethylhex-2-yne to trans-4,5-dimethylhex-2-ene.

Accepted Answer

A)   1. OsO4; 2. NaHSO3, H2O
B)   HBr, ROOR
C)   NaBr
D)   Na, NH3
E)   HBr

Question 19

Predict the products of the following reaction.

Accepted Answer

A)   I, III, and IV
B)   II, III, and IV
C)   I, III, and V
D)   II, IV, and VI
E)   III and IV

Question 20

Select the best reagent to convert 1-bromo-1-methylcyclohexane to 1-bromo-2-methylcyclohexane.

Accepted Answer

A)   1. KOtBu; 2. HBr
B)   1. NaOEt; 2. HBr
C)   1. NaOEt; 2. HBr, ROOR
D)   1. KOtBu; 2. HBr, ROOR
E)   Br2, h υ\upsilonυ

Exam 11: Synthesis

One compound is produced when acetylene is treated with the following reagents. What is the product?

Correct Answerverifiedbutanoic a...View AnswerShow Answer

Select the best reagent to convert 4,5-dimethylhex-2-yne to trans-4,5-dimethylhex-2-ene.

Correct AnswerverifiedShow Answer

Devise a synthetic route of the diol shown below starting with 1,1,3,3-tetramethyl-2-ethylcyclohexane.

Correct Answerverified_TB4454_00 Alternati...View AnswerShow Answer

Select the best reagent to convert 1-bromo-1-methylcyclohexane to 1-bromo-2-methylcyclohexane.

Correct AnswerverifiedShow Answer

Predict a correct sequence of reactants required to complete the following synthesis in which propanal is the only carbon-containing product. NaNH2 CH3SCH3 H2O CH3CH2Br O3 Na/NH3(l) H2/Pt I II III IV V VI VII

Correct AnswerverifiedShow Answer

Select the best reagents for the reaction below.

Correct AnswerverifiedShow Answer

Identify the changes that must occur in converting cis-2-butene into 2-butanol.

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Propose a synthetic route for the following reaction.

Correct Answerverified1. NaCCH2...View AnswerShow Answer

Using retrosynthetic synthesis, determine which compound(s) could lead to the bromoalkene shown below in a single step.

Correct AnswerverifiedShow Answer

Propose a multi-step synthetic sequence to accomplish the transformation below.

Correct Answerverified1. Br2, h...View AnswerShow Answer

Devise a synthetic route for the following equation.

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Devise a synthesis to lengthen the legs of "Ralph" as requested below.

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Identify the statement that is not part of Green Chemistry.

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What is the minimum number of steps required to convert 2-methylpropane into 2-methylpropene?

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Predict the products of the following reaction.

Correct AnswerverifiedShow Answer

Devise a synthetic route to prepare 1,7-heptanediol from propene.

Correct AnswerverifiedShow Answer

Select the best reagents for the reaction below.

Correct AnswerverifiedShow Answer

Using retrosynthetic synthesis, determine which compound(s) could lead to the alkyne shown below in a single step.

Correct AnswerverifiedShow Answer

Which order of reactions would most effectively convert trans-2-butene into 1-butene?

Correct AnswerverifiedShow Answer

Perform a retrosynthetic analysis by working backwards two steps in the synthesis below. Identify possible combinations of A and B that can lead to the alcohol (C) .

Correct AnswerverifiedShow Answer

Correct Answer
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butanoic a...
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_TB4454_00 Alternati...
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Predict a correct sequence of reactants required to complete the following synthesis in which propanal is the only carbon-containing product. NaNH₂ CH₃SCH₃ H₂O CH₃CH₂Br O₃ Na/NH₃(l) H₂/Pt I II III IV V VI VII

Correct Answer
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Select the best reagents for the reaction below. $Select the best reagents for the reaction below. A) HBr B) Br<sub>2</sub>/h \upsilon C) Br<sub>2</sub>/ROOR D) HBr/ROOR E) h \upsilon /NBS$

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1. NaCCH
2...
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1. Br₂, h...
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Select the best reagents for the reaction below. $Select the best reagents for the reaction below. A) HBr B) Br<sub>2</sub>/h \upsilon C) Br<sub>2</sub>, CCl<sub>4</sub> D) HBr/ROOR E) h \upsilon /NBS$

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